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1991 ADA Standards for Accessible Design

Note: This document, portion of document or referenced document was published prior to the 2010 ADA Standards, and all or part of this information may only apply to Safe Harbored elements.

A4.16 Water Closets.

A4.16.3 Height.

Height preferences for toilet seats vary considerably among disabled people. Higher seat heights may be an advantage to some ambulatory disabled people, but are often a disadvantage for wheelchair users and others. Toilet seats 18 in (455 mm) high seem to be a reasonable compromise. Thick seats and filler rings are available to adapt standard fixtures to these requirements.

A4.16.4 Grab Bars.

Fig. A6(a) and (b) show the diagonal and side approaches most commonly used to transfer from a wheelchair to a water closet. Some wheelchair users can transfer from the front of the toilet while others use a 90-degree approach. Most people who use the two additional approaches can also use either the diagonal approach or the side approach.

Fig. A6(a) Diagonal Approach (to the toilet fixture). A diagonal transfer is illustrated as follows. Diagram 1: wheelchair user takes a transfer position diagonal to the toilet fixture, swings footrest out of the way, sets brakes. Diagram 2: removes armrest, transfers. Diagram 3: moves wheelchair out of the way, changes position (some people fold chair or pivot it 90 degrees to the toilet). Diagram 4: positions on toilet, releases brake.

Fig. A6 Wheelchair Transfers

Fig. A6(b) Side Approach (to the toilet fixture). A side transfer is illustrated as follows. Diagram 1: wheelchair user takes transfer position parallel to the side of the toilet fixture, removes armrest, sets brakes. Diagram 2: transfers. Diagram 3: positions on toilet. (A4.16.4, A4.22.3)

Fig. A6 Wheelchair Transfers

A4.16.5 Flush Controls.

Flush valves and related plumbing can be located behind walls or to the side of the toilet, or a toilet seat lid can be provided if plumbing fittings are directly behind the toilet seat. Such designs reduce the chance of injury and imbalance caused by leaning back against the fittings. Flush controls for tank-type toilets have a standardized mounting location on the left side of the tank (facing the tank). Tanks can be obtained by special order with controls mounted on the right side. If administrative authorities require flush controls for flush valves to be located in a position that conflicts with the location of the rear grab bar, then that bar may be split or shifted toward the wide side of the toilet area.

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